"Perhaps I've been over educated" 
I have an MSc, and pre DC I worked for over a decade in a related industry, studied exams and gained further professional qualifications.
I didn't expect to be made redundant, and starting looking for work as soon as my sector was put at risk (the week I returned after having DC2
). Found that average full time pay for similar jobs was less than I was currently getting part time. (After DC1 I negotiated part time hours and worked 30 hours over 5 days so didn't need to pay for wraparound childcare).
Pro rata at that point I was earning about the same as DH. He works 3 shift (week of days, week of lates, week of nights) with extra mandatory shifts called at the weekend with 2/3 days notice. I'm finding it near impossible to find a job that fits round that and will pay for the wraparound childcare I will need, because the work I can do is almost never available as a part time job. I'm also looking for admin/schools type work too, but they're like hens teeth. I would retrain but not sure we can afford it. Have looked at apprenticeships but the pay wouldn't touch the childcare costs, and with a Masters degree/nearing 40 my understanding is that I wouldn't be eligible for many.
My mental health is suffering from being at home if I'm honest, and I'm becoming slightly obsessed with the running of the house. We have lots of family and friends nearby but almost none of them are SAHPs so I find the days lonely, and the weekends that DH works long. He takes our only car, and I could drop him off but would mean everyone being up at 5am at the latest.
I agree with the principle of retaining financial independence, but I'm not sure how to achieve it. I've said to DH I worry about how vulnerable I feel now, although he's never given me any reason to.
This isn't the life I imagined, but like most of us, I'm trying to make the best of it for all the family.